EMILY Seebohm claimed her 24th national title when she won the 100m individual medley at the Australian short course championships in Adelaide on Friday.
After winning gold in the 200m backstroke and silver in the 400m IM on Thursday, Seebohm backed up on Friday morning to win a thrilling 100m IM final in 1min 00.21secs from training partner Aisling Scott in 1:00.89 and Carla Buchanan in 1:01.39.
The Olympic gold medallist later set the second fastest time in the 100m backstroke heats in 58.31 just behind former junior world champion Minna Atherton in 57.56. The final was set for Friday night.
The best race of the day was the men's 800m freestyle timed event with visiting US world champion Jordan Wilimovsky swimming 7mins 44.40secs to beat Joshua Parrish by 0.17 of a second and Nathan Robinson by one second.
The trio went stroke for stroke most the race before a frantic final sprint to the wall where Wilimovsky prevailed.
Wilimovsky, 23, won the 10km open water swim at the 2015 world championships and this year took silver.
The Californian-based swimmer has been training through the Australian winter with Michael Bohl's new high performance centre at Griffith University on the Gold Coast.
In other races, Rio Olympic relay bronze medallist David Morgan won his third straight 50m butterfly title in 23.04 from Matthew Temple (23.62) and Edwards Marks (23.64).
Less than 24 hours after breaking the 100m short course world record Cate Campbell was back in the pool for the 50m freestyle heats.
She clocked the second fastest time of 24.39 behind 18-year-old training partner Shayna Jack who touched in 24.27 and sister Bronte Campbell in 24.46.
Mikkayla Sheridan was the fastest qualifier in the women's 400m freestyle heats ahead of Friday night's final in 4mins 5.84secs from Olympians Madi Wilson 4:06.71 and Australian all-comers record holder Jessica Ashwood in 4:08.89.
World championship long course silver medallist Emma McKeon showed strong form in the 100m butterfly heats by winning in 57.48 from Emily Washer and Brianna Throssell.
Victorian Olympian Josh Beaver won the men's 200m backstroke in 1:54.88 from visiting Japanese star Daiya Seto in 1:55.20 and Rio Olympic 400m IM finalist Travis Mahoney in 1:55.36.
Olympic finalist Taylor McKeown was fastest in the 200m breaststroke heats, stopping the clock in an impressive 2:22.04 with the 2:20 barrier well within reach on Friday night.
The national short course swimming championships continue at the SA Aquatic and Leisure Centre on Saturday with heats from 11am and finals from 7pm.
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